Arsenal missed the chance to go eight points clear at the top of the Premier League after letting a 2-nil lead slip to draw 2-all at Liverpool.
They conceded a late equaliser before Aaron Ramsdale made two superb saves to ensure they didn't lose.
The Gunners are now six points clear of nearest challengers Manchester City - who have a game in hand.
The Football Association and refereeing body PGMOL are investigating an incident between Liverpool's Andy Robertson and a match official.
The Scotland international appeared to be elbowed when he confronted assistant Constantine Hatzidakis at the end of the first half.
Crystal Palace thrashed fellow strugglers Leeds 5-1 as they moved six points clear of the relegation zone.
The defeat leaves Leeds just two points ahead of the bottom three.
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There's a full programme of Championshp fixtures this afternoon.
Huddersfield versus Blackburn is underway at 12:30pm.
Newly-promoted Burnley host Sheffield United in the late game at Turf Moor.
Kick off is at 8pm.
